Combination lock with backup key



FIG. 1 is a front perspective view of the combination lock with backup key showing my new design;

FIG. 2 is a front perspective view of the combination lock with backup key of FIG. 1;

FIG. 3 is a front view of the combination lock with backup key of FIG. 1;

FIG. 4 is a left side view of the combination lock with backup key of FIG. 1;

FIG. 5 is a top plan view of the combination lock with backup key of FIG. 1;

FIG. 6 is a right side view of the combination lock with backup key of FIG. 1;

FIG. 7 is a rear view of the combination lock with backup key of FIG. 1; and,

FIG. 8 is a bottom plan view of the combination lock with backup key of FIG. 1.

The broken line showing is included for the purpose of illustrating and forms no part of the claimed design. 

The ornamental design for a combination lock with backup key, as shown and described. 